Adjustable tension for bobbins for spinning or twisting frames.



J. E. HARBOUR.

ADJUSTABLE TENSION FOR BOBBINS FOR SPINNING OB. TWISTING FRAMES.

APPLICATION FILED AUG. 17, 1910.

1,004,342. Patented Sept. 26, 1911.

8 SHEETS-SHEET 1.

COLUMBIA PLANuhnAPn :0..Wl1suma1'oN. D. C.

J. E. BARBOUR.

ADJUSTABLE TENSION r011 ROBBINS FOR SPINNING on TWISTING FRAMES.

APPLICATION FILED AUG. 17, 1910.

1,004,342. Patented Sept.26,1911.

2 BHEET8-BHEET Z.

COLUMBIA WWII CO WMNINGTON. IL C.

JOHN E. BARBOUR, OF PATERSON, NEW JERSEY.

ADJUSTABLE TENSION FOR BOBBINS FOR SPINNING OR TWISTING FRAMES.

Specification of Letters Patent.

Patented Sept. 26, 1911.

Application filed August 17, 1910. Serial No. 577,637.

To all whom it may concern:

Be it known that I, JOHN E. BARBOUR,

a citizen of the United States, and resident of Paterson, in the countyof Passaic and State of New Jersey, have invented a new and usefulImprovement in Adjustable Ten sion for Bobbins for Spinning or TwistingFrames, of which the following is a specification.

The object of this invention is to provide an adjustable tension forbobbins of spinning or twisting frames whereby the drag on each bobbinmay be instantly and readily removed when so desired.

In the accompanying drawings, Figure 1 represents in front elevation aportion of a spinning frame embodying my improvement, Fig. 2 is avertical cross sectional view of the same, Fig. 3 is an enlarged detailfront view of two adjacent bobbins and their spindles showing the dragreels on the left hand bobbin and applied on the right hand bobbin, Fig.4 is a section taken in the plane of the line AA of Fig. 3, looking inthe direction of the arrows, Fig. 5 is a vertical longitudinal sectionthrough the two bobbins and their adjacent parts, and Fig. 6 is atransverse section taken in the plane of the line B.-B of Fig. 4,looking in the direction of the arrows.

The spinning frame is denoted by 1 and each spindle rotatably mountedtherein is denoted by 2. These spindles are driven in the usual mannerfrom a suitable driving shaft 3 through the belt and pulley connections4, 5, 6.

The bobbin mounted on each spindle 2 is denoted by 7 and it is providedwith the following adjustable tension or drag: A circular block 8surrounds the spindle within a housing 9, which block is interlockedwith the bottom of the bobbin 7 by providing a plate 10 fixedly securedon the block 8 with dowels 11 projected upwardly into holes 12 in thebottom of the bobbin.

The leather flaps 13 which form the drag are secured at intervals aroundthe periphery of the circular block 8. A spring band 14; is coiledaround the block 8 within the housing 9, along the inner wall of whichspring band the drags 13 are fitted to travel when the band is in itscontracted posltlon. One end of this spring band is secured to a pin 15carried by the housing 9 and the free end of the said band is fitted toslide along an inner portion of the band as the band is contracted andexpanded. This band 14 is provided with a handle 16 which projectsoutwardly through an elongated slot 17 in the front of the housing 9.Shoulders 18, 19, are provided near the ends of the elongated slot 17for retaining the handle 16 in its two positions against unintentionalremoval.

As the parts are arranged in the accompanying drawings, the spring band14 is held in its contracted position when the handle 16 is at the limitof its movement to the left, and is held in its expanded position whenthe handle is swung to the limit of its movement to the right.

When the band is in its contracted position, it will coact with thedrags 13 to exert a retarding tension upon the bobbin 7 and when theband is in its expanded position it will be released from its engagementwith the drags 13 and thus permit the bobbin to rotate freely withoutany retarding tension thereon.

To permit two adjacent handles 16 to be freely moved from one to theother of their positions without interfering with each other, the handleof each alternate bobbin tension device is arranged in a plane above thehandles of the remaining tension devices.

To insure the concentric relationship of the spring band 141 and theblock 8, when the band is contracted the bottom of the housing 9 isprovided with a circular shoulder 20 arranged to engage the inner wallof the spring band.

By the arrangement herein set forth, it will be seen that the tension oneach individual bobbin may be applied or removed at pleasure withoutinterfering with the tension'of the other bobbins.

It is evident that various changes might be resorted to in theconstruction, form and arrangement of the several parts withoutdeparting from the spirit and scope of my invention; hence I do not wishto limit myself strictly to the structure herein shown and described,but

lVhat I claim is 1. A spindle, means for driving it, a bobbin mounted onthe spindle, a drag flap fixed to rotate with the bobbin, an expansibleand contractible band surrounding said drag flap and means for expandingand contracting said band.

2. A spindle, means for driving it, a bobbin mounted on the spindle, adrag flap fixed to rotate with the bobbin, an expansible andcontractible band surrounding said drag flap and a handle attached, tosaid band and extending within convenient reach of the operator forthrowing said band into and out of engagement with the flap.

3. A spindle, means for driving it, a bobbin mounted on the spindle,means for applying tension to the bobbin comprising a block surroundingthe spindle, drags carried by the block, and an expansible andcontractible band surrounding said block and means for expanding andcontracting said band.

4. A bank of spindles, means for driving them, bobbins mounted on thespindles, means for applying tension to each of the bobbins, comprisinga block surrounding each spindle, drags carried by each block and anexpansible and contractible band surrounding each block, and means forexpanding and contracting each of said bands.

5. A spindle, means for driving it, a bobbin mounted on the spindle, aplurality of drag flaps fixed to rotate with the bobbin, an. Kexpansible and contractible band surround JOHN E. BARBOUR.

Witnesses WALDO LUOKOW, ANDREW CHAMBERS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

